20758696

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26519384

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 71, 92, 142, 161, 184, 227, 284, 322, 454, 497, 568, 644, 908, 994, 1288, 1589, 1633, 1816, 1988, 3178, 3266, 3976, 5221, 6356, 6532, 10442, 11431, 12712, 13064, 16117, 20884, 22862, 32234, 36547, 41768, 45724, 64468, 73094, 91448, 112819, 128936, 146188, 225638, 292376, 370691, 451276, 741382, 902552, 1482764, 2594837, 2965528, 5189674, 10379348, 20758696]

約数ペア:

[(1, 20758696), (2, 10379348), (4, 5189674), (7, 2965528), (8, 2594837), (14, 1482764), (23, 902552), (28, 741382), (46, 451276), (56, 370691), (71, 292376), (92, 225638), (142, 146188), (161, 128936), (184, 112819), (227, 91448), (284, 73094), (322, 64468), (454, 45724), (497, 41768), (568, 36547), (644, 32234), (908, 22862), (994, 20884), (1288, 16117), (1589, 13064), (1633, 12712), (1816, 11431), (1988, 10442), (3178, 6532), (3266, 6356), (3976, 5221)]